Revolving door



Dec. 31, 1935. j SCHREIBER 2,025,958

REVOLVING DOOR Filed Nov. 9, 1933 3 Sheets-Sheet l /:/'5 ATTORNEY Dec. 31, 1935- J. v. SCHREIBER REVOLVING DOOR Filed Nov. 9, 1933 3 Sheets-Sheet 2 INVENTOR,

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Dec. 31, 1935- J. v. SCHREIBER REVOLVING DOOR Filed Nov. 9, 1933 3 Sheets-Sheet 3 J. V/lz/q/m/v Sea/mam,

44 INVENTOR,

6/; ATTORNEY Patented Dec. 31, 1935 UNITED STATES PATENT OFFICE 8 Claims.

This invention relates to revolving doors and particularly to that type thereof in which the individual doors or leaves are adapted to be collapsed or folded together when it is not desired to use the door as a revolving door, and the main object of this invention is to provide improved guiding and bearing means for such leaves when it is desired to collapse or fold them.

Another object of this invention is to provide guiding means, as characterized, and for the purpose mentioned, which will also provide reliable bearings for the leaves of the revolving door when they are being collapsed and securing means for them when they are used as parts of a revolving door, said securing means also insuring a substantially perpendicular position between each two leaves in relation to one another.

Other objects of this invention will be apparent as the specification of the same proceeds, and among them may be mentioned: to provide a device as characterized hereinbefore which will be simple in construction, eflicient in use, inexpensive to manufacture, reliable in operation and which will be applicable to revolving door constructions as used at present without substantial change in their designs, which will not be affected by wear, which will provide a draft and dustproof closing between the leaves and the shaft around which they rotate and which also will be attractive in appearance.

In the drawings forming a part of this specification and accompanying the same:

Fig. l is a diagrammatical elevation of a revolving door to which my device has been applied;

Fig. 2 is a sectional similarly diagrammatical plan thereof, the section being taken on the line 22 of Fig. 1;

Fig. 3 is a partly sectional enlarged fragmentary front elevation of the upper guiding means for said door leaves, the section being taken on about the line 3--3 of Fig. 5;

Fig. 4 is an enlarged fragmentary front elevation of the lower guiding means;

Fig. 5 is an enlarged sectional fragmentary detail of the door leaves and of their guiding means, the section being taken on the line 5-5 of Fig. 3;

Fig. 6 is a plan view of one set of my guide means for revolving doors, the shaft for the same and a fragmentary portion of the door leaves being shown in section, the latter in a collapsed or folded condition, their normal perpendicular position being indicated by the dot and dash lines in said figure, and the section being taken on about the line 6-6 of Fig. 1;

Fig. 7 is an enlarged sectional fragmentary detail showing a portion of the guide means and of one leaf of the door and indicating the initial movement of said leaf when it is desired to collapse the leaves of the door.

Referring now to the drawings more closely, by characters of reference, the numeral 10 indicates a revolving door in general of any standard construction and having the four leaves, A, B, C and D. As it is well known in the art, a central shaft II is provided for the door around which the same may rotate, said shaft having lower and upper bearings 12 and I3, respectively, and being arranged in the bay-shaped rounded opening l4 in the wall of the building. A trolley 15 device I5 is also indicated above the door by which the same may be moved in a sideways direction out of the way when it is collapsed, as it I is well known in the art.

In Fig. 2 the four leaves are also indicated by the dot and dash lines, at l5a, as they would appear in a collapsed or folded condition, as it is also well known in the art, my specific means for collapsing the same to be explained hereinafter. Chains or other connecting securing means It 25 may be employed between the individual door leaves, as it is usual, and when they are applied to the individual leaves, as indicated in Fig. 2, a pressure executed on one of the leaves in a certain direction, as shown by the arrow l1, will cause the door to rotate in the usual manner. When, however, the chains IE or any of the other standard connecting or securing means between the door leaves are disconnected then such a pressure will cause the individual leaves to rotate or rock around the shaft II and as such a movement is applied to each of the leaves they finally may be brought into the condition indicated bythe dot and dash lines i511. The same will happen if opposing forces, indicated by the arrows I8 and [9, are simultaneously applied to two neighboring leaves as would be the case in an emergency or panic when people would press both the leaves IB and C simultaneously, as indicated by the arrows l8 and I9, and the chain l6 between said two leaves would be broken or said chain or other connecting means between said two leaves would be automatically disconnected under such pressure, as is usual in the art.

The present means applied on such revolving doors for collapsing or folding the individual leaves together or for securing them in a generally perpendicular position to one another have many shortcomings and drawbacks which it is not my purpose to detail in this specification.

My invention, as has been indicated in the introduction to this specification, has the purpose to provide an improved novel and superior guiding, collapsing and bearing means for the leaves of such doors, and, for this purpose, I apply two peculiarly shaped generally disklike members 2|) and 2| as the lower and upper guiding and bearing means for said leaves.

Referring now particularly to the upper guiding means 2|, shown in detail in Figs. 3 and 5, said member 2| is provided with a hub 22 by which it is secured on the central shaft The member 2| is generally composed of four circular parts, 23, 24, 25 and 26, preferablyin one integral piece with said hub and the respective door leaves A and C preferably having peculiarly shaped metal pieces or blocks 27 and 28 inserted thereinto around the respective parts of the guide disk or member proper 2|, said metal blocks 2| and 28 showing apertures 29 and 30, respectively, shaped to closely follow the outlines of the disk 2| but permitting said leaves A and C to rotate around said block or disk member 2|.

The circular parts 23 to 26 of the disk 2| have generally cross-shaped cross sections, as indicated on the left hand side of Fig. 3, and the upper and lower projections 3| and 32, respectively, serve as guides for upper and lower pivoted sliding blocks, to be described hereinafter.

Each door leaf is formed with a channel shaped inner edge 33 and the hubs 22 as well as tubes 34 pushed over the shaft II at the portions thereof left free by the hubs 22 of the upper and lower guide blocks 20 and 2|, have identical wedge shaped projections 35, 36, 31 and 38 being ninety degrees apart from one another and corresponding to the door leaves A, B, C and D. The bottom of the channel 33 in each door leaf has a rounded projection 39 engaging the outer edge of the respective key form projections 35, 36, 3? and 38 so that each door leaf may easily roll on the respective key shaped projection, by said rounded projection 39, while normally said two projections are kept in close contact all along the length of the door leaves and thereby insure dust and draft-proof closures between the central shaft construction and the individual leaves.

The door leaf A has two ears 45 and 4| at the two sides thereof adjacent and above the upper guiding disk 2|, and sliding'guide shoes 42 and 43 are pivoted around pins 44 on said ears. Said shoes have their undersides shaped to fit over the upper surfaces of the respective guide circles, 23 and 24, being generally channel shaped, so that upon a forward or backward rocking of the leaf A, the respective shoes 42 or 43 will slide along and on top of the guide circles 23 and 24, said shoes thereby guiding the movement of the leaf A, while, at the same time, they serve as supports and bearings for said leaf against a downward movement thereof, that is, said leaf A, is, so to say,suspended on the guide circles 23 and 24 through said sliding shoes 42 and 43. Two

similar sets of ears and shoes 45 and 46 and 41 and 48, respectively, are arranged on the door leaf C to provide upper guiding, bearing and suspending means for the same on the circular guides 25 and 26.

For the upper guiding and supporting of the other two door leaves, namely, B and C, similar pairs of ears and sliding guide shoes 49-50; 5|52; 53-54; 55 and 56, respectively, are provided, all these latter ones being arranged under neath the guide block or disk 2| so that the shoes on the leaves B and D will ride on the undersides of their respective circular guides 23, 24, 25 and 26, and in Fig. 5 all these parts are shown by dotted lines.

The leaves B and D will also be provided with metal inserted blocks or plates 5'! and 58, similar to the metal blocks 21 and 28, in their parts adjacent to the guide disk 2| having similar openings to the openings 29 and 30 described hereinbefore, cut thereinto to permit the leaves B and D to ride around said guide disk 2|. The lower 10 guide disk 20 will have entirely identical ears and sliding shoes as well as metal blocks or plates associated therewith in the respective door leaves A, B, C and D, as will be obvious and as it is indicated in Fig. 4, the only difference being 15 that the ears and guide shoes on the leaves A and C will now be arranged underneath the guide block or disk 20 so as to support said leaves A and C against upward movement, while the ears and sliding shoes on the leaves B and D will be ar- 20 ranged above the lower guide disk or block 2|] so as to secure the leaves B and D against downward movement. It is obvious, therefore, that each leaf, A, B, C and D, has bearing means against upward or downward movement, and is 25 perfectly secure against longitudinal or lateral movement in every position thereof while riding on and around its respective guiding circle 23, 24, 25 or 26. 7

Normally the four'door leaves, A, B, C and D 30 are arranged at ninety degrees apart from one another and the sliding shoes for each leaf on each guiding disk or block 29 or 2! are meeting in the center lines of said leaves as indicated at 59 for the leaves A and C and in Fig. 5. For this 35 purpose, the inner corner of each sliding shoe may be cut off, as also indicated at 59, so that said shoes'meet in the normal-position of the leaf A on their cut-off surfaces 59 and prevent a movement or rocking of the respective door 40 leaf in either direction, thereby securing perfectly rectangular relations between the individual door leaves and indicating it by the strong resistance they will offer against the rocking of said door leaf. When the respective neighbor- 45 ing sliding shoes meet each other on the cut-off surfaces 59, and when the individual door leaves are secured together by any of the standard means, indicated at It in Fig. 2, the same may be rocked around the shaft in the usual man- 50 ner forming one rotating unit.

When, however, it is desired to fold the individual leaves alongside of one another, as indicated in Fig. 6, the connection l5 will be severed between the leaves either by any of the usual methods, or by yielding on acount of the opposingly exerted pressure on the door leaves in case of an emergency or panic, as has been described hereinbefore and indicated by the arrows l8 and IS in Fig. 2. Then a door leaf, as 6G indicated in the case of the door leaf C on a larger scale in Fig. 7, will be caused to make an initial movement around its beaded projection 39, as, for instance, in the direction of arrow 50, until its ear 4'! will hit a. projection E! on the hub 22, said position thereof being indicated by the dot and dash lines in said Fig. 7. When this position is reached the pin 44 in said ear will become stationary or fixed, while the respective sliding shoes 48 and 46 are now in a position where they may avoid each other on the further rocking or turning of the leaf C in the direction of arrow 60, their cut-off or inclined edges 59 being now out of engagement with one another.

When the pressure on the leaf C is now continued the-same may further turn or rock in the direction of arrow 60, its shoe 48 remaining stationary while the shoe 46 will ride on its circular guide 26 until the leaf C will take up its folded position indicated in Fig. 6. The other leaves A, B and D may also be folded in a similar manner in their respective directions until they take up the positions indicated in Fig. 6, and in Fig. 2 by the dot and dash lines l5. For the movement just described, it is necessary that the centers of the circular tracks 23 to 26 should not be identical with the centers of the pins 44 when the doors are in their normal positions ninety degrees apart but the centers of each track is in the position indicated for the respective pin 44 in Fig. 6 after the respective leaves are through with their initial rolling movement, as shown in Fig. 7. The center of the track 26, for instance, will be at 10 which is the center of the pin 44 for the shoe 48 after said pin has been moved into its dot and dash line position indicated at Ma.

It will be seen that my device provides greatly improved bearing and guiding means for folding revolving doors, doing away with all the complicated pins and similar devices now in use for securing the leaves of such doors in their normal positions ninety degrees apart and providing for their turning movement.

As will be seen, all the circular paths 23 to 26 are in one horizontal plane for each guide block and the respective pairs, like 23-24; 24- r tions of my device and I hereby reserve all my rights to any and all such changes as are within the spirit of the invention and the scope of the appended claims.

What I claim as new, is:

1. In a revolving door construction, a central shaft, a plurality of leaves rockable around said shaft but being independent therefrom and not secured thereto, said leaves being normally secured to one another by disconnectible means; a guide block for the door leaves secured on said shaft having an arcuate guide path for each leaf; two ears on each leaf and two shoes pivoted in said ears slidably engaging respective arcuate paths; a limit member on the guide block for each shoe whereby an initial rolling of the respective leaf around said shaft will cause said ear to engage said limit member so as to make said ear and the pivot therein stationary, said pivot being then adapted to serve as the axis for the movement of the door leaf around the arcuate guide member for the other shoe.

2. In a revolving door as set forth in claim 1, said leaves normally being radially placed around said shaft and in a close but rocking and discon nectible engagement therewith, each leaf having a cut out portion closely following the outline of said guide block to permit the passing of said guide block through said leaf while the latter is rolled and rocked to be folded alongside its companion leaves.

3. In a revolving door, having a central shaft, and door leaves rockable around said shaft but not secured thereto, normally being secured to 5 one another by disconnectible means; guide path members secured on said shaft; slidable shoes secured 'on each leaf adapted to engage respec' tive guide path members and being slidable thereon, thereby to guide the movement of the door leaf when the same is released from the other leaves and turn said leaf around said shaft so as to finally fold all the leaves alongside one another, said guide path members being arcuate and two sliding shoes being pivotedly arranged in each leafengaging respective guide members, one of the shoes being made stationary when a leaf is to be moved around an arcuate guide member to be folded alongside of the other leaves, the pivot of said stationary shoe being the center of said guide member around which the door is being moved, the other shoe moving around said guide member.

4. In a. revolving door having a central shaft and door leaves rockable around said shaft but not secured thereto normally being secured to one another by disconnectible means; guide path members secured on said shaft; slidable shoes secured on each leaf adapted to engage respective guide path members and being slidable thereon, thereby to guide the movement of the door leaf when the same is released from the other'leaves and turn said leaf around said shaft so as to finally fold all the leaves alongside one-another, two guide members and two slidable shoes being provided for each door leaf, each pair of guide members and shoes being in substantially the same horizontal plane, said shoes meeting in about the center line of said two guide members, being the center line of the respective door leaf when 0 in its normal position, and thereby preventing rocking of the leaf in either direction, and means to move one shoe out of the path of the other and so permit a movement of the door leaf, to be guided by the second shoe.

5. In a revolving door having a central shaft and door leaves rockable around said shaft but not secured thereto normally being secured to one another by disconnectible means; guide path members secured on said shaft; slidable shoes secured on each leaf adapted to engage respective guide path members and being slidable thereon, thereby to guide the movement of the door leaf when the same is released from the other leaves and turn said leaf around said shaft so as to finally fold all the leaves alongside one another, two guide members and two slidable shoes being provided for each door leaf, each pair of guide members and shoes being in substantially the same horizontal plane, said shoes meeting in about the center line of said two guide members, being the center line of the respective door leaf when in its normal position, and thereby preventing rocking of the leaf in either direction, and means to move one shoe out of the path of the other and so permit a movement of the door leaf to be guided by the second shoe, said means to move one shoe out of the path of the other comprising a pivot pin on the door leaf for each shoe, interengaging surfaces on the door leaf and on the shaft, otherwise independent of one another, permitting an initial rolling of the leaf around the shaft, thereby turning said two shoes on their pivots and simultaneously moving said shoes on their guides so as to disengage and avoid one another.

6. In a revolving door having a central shaft and door leaves rockable around said shaft but not secured thereto normally being secured to one another by disconnectible means; guide path members secured on said shaft; slidable shoes secured on each leaf adapted to engage respective guide path members and being slidable thereon, thereby to guide the movement of the door leaf when the same is released from the other leaves and turn said leaf aroundrsaid shaft so as to finally fold all the leaves alongside one another, two guide members and two slidable shoes being provided for each door leaf, each pair of guide members and shoes being in substantially the same horizontal plane, said shoes meeting in about the center line of said two guide members, being the center line of the respective door leaf when in its normal position, and thereby preventing rocking of the leaf in either direction, and means to move one shoe out of the path of the other and so permit a movement of the door leaf to be guided by the second shoe, said means to move one shoe out of the path of the other comprising a pivot pin on the door leaf for each shoe, interengaging surfaces on the door leaf and, on the shaft, otherwise independent of one another, permitting an initial rolling of the leaf around the shaft, thereby turning said two shoes on their pivots and simultaneously moving said shoes on their guides so as to disengage and avoid one another, said guides being arcuate and the pivot of one shoe being in a position to serve as the center of the door leafs motion along the respective arcuate guide after said initial rolling movement of said leaf.

7. In a revolving door having a central shaft. and door leaves rockable around said shaft but not secured thereto normally being secured to one another by disconnectible means; guide path members secured on said shaft; slidable shoes 5 secured oneach leaf adapted to engage respective guide path member and being slidable thereon, thereby to guide the movement of the door leaf when the same is released from the other leaves and turn said leaf around said shaft so r as to finally fold all the leaves alongside one another, said shoes being elongated and. following the curvature of the guide members, and said shoes and guide members having co-operating projections and depressions by which to ride on one another.

8. In a revolving door having a central shaft and door leaves rockable around said shaft but not secured thereto normally being secured to one another by disconnectible means; guide path members secured on said shaft; slidable shoes secured on each leaf adapted to engage respective guide path members and being slidable thereon, thereby to guide the movement of the door leaf when the same is released from the other leaves and turn said leaf around said shaft so as to finally fold all the leaves alongside one another, two guide members and two slidable shoes being provided for each door leaf, each pair of guide members and shoes being in substantially the same horizontal plane, said shoes meeting in about the center line of said two guide members, being the center line of the respective door leaf when in its normal position, and thereby preventing rocking of the leaf in either direction.

J. VAUGHAN SCI-LREIBER. 

